In 27 ABY, the XJ3 X-wing was introduced. Among the improvements it introduced was a mechanism to bring the shields down, then back up to keep them from being overloaded by dovin basals, a launcher (on Jedi craft) for their shadow bombs, and stutter-fire lasers that helped to get past the dovin basal shields of the Yuuzhan Vong ships.[1] It was deployed primarily to AdmiralTraest Kre'fey's ships and to the Jedi, who used them quite effectively.[source?]